For bile duct stenosis, there is no optimal cure, and clinical treatment measures such as medication, intervention and surgery are usually adopted. According to the different conditions of patients, choose the appropriate cure. 1. Drug treatment: If the stenosis is caused by general bile duct inflammation, anti-infective drugs (such as cefoperazone, moxifloxacin, etc.) can be used as prescribed by the doctor to treat the inflammation and restore it to the normal pathway. If the stenosis is due to inflammatory hyperplasia, biliary stenting or surgery can be considered. 2. Interventional therapy: If medication, cannot solve the problem of bile duct stenosis, consider interventional therapy, such as endoscopic placement of a stent, which can dilate the bile duct, thus achieving the purpose of treating the stenosis. 3. Surgery: If the bile duct stenosis is directly or indirectly caused by a tumor, bile duct reconstruction after radical surgical resection, such as pancreaticoduodenectomy, should be considered. There are many causes of bile duct stenosis and many treatment options, which need to be under the guidance of a physician.